From: phase90 (phase90@comcast.net)
Date: Tue Jan 06 2004 - 23:36:39 GMT-3
Charles,
Probably the metric on the TRing is lower than the ethernet -
the reason both paths are not in the routing table is the metrics are not
equal. They never would be as Tring is 4Mg or 16Mg.
This one probably had ring-speed 16 command under the T0 interface and so
presuming it's a 10 Meg ethernet only the T0 route is being installed.
JVH
----- Original Message -----
From: "Charles T. Alexander" <charles.t.alexander@verizon.net>
To: <ccielab@groupstudy.com>
Sent: Tuesday, January 06, 2004 9:21 PM
Subject: EIGRP Dual Paths
> I have an EIGRP domain.
>
> r6 ---serial-------- r9
> | |
> ethernet ethernet
> | |
> r7 ---token ring ---r8
>
> I can ping all around. The route table showes r7 to r9 through token
> ring. If I shut the token ring I can ping r9 the other
> way.
>
> However the route table doesn't show two paths from r7 to r9. I don't
> understand why not.
>
> r7#i
> Codes: C - connected, S - static, I - IGRP, R - RIP, M - mobile, B - BGP
>
> D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
> N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
> E1 - OSPF external type 1, E2 - OSPF external type 2, E - EGP
> i - IS-IS, L1 - IS-IS level-1, L2 - IS-IS level-2, ia - IS-IS
> inter area
> * - candidate default, U - per-user static route, o - ODR
> P - periodic downloaded static route
>
> Gateway of last resort is not set
>
> 137.10.0.0/16 is variably subnetted, 5 subnets, 4 masks
> C 137.10.7.0/24 is directly connected, Loopback0
> D 137.10.69.0/28 [90/2195456] via 137.10.74.6, 00:34:38,
> Ethernet0/0
> C 137.10.74.0/26 is directly connected, Ethernet0/0
> C 137.10.78.0/25 is directly connected, TokenRing0/0
> D 137.10.98.0/24 [90/297728] via 137.10.78.8, 00:34:38,
> TokenRing0/0
> D EX 192.177.0.0/24 [170/425728] via 137.10.78.8, 00:29:24, TokenRing0/0
>
> D EX 192.177.1.0/24 [170/425728] via 137.10.78.8, 00:29:25, TokenRing0/0
>
> D EX 192.177.2.0/24 [170/425728] via 137.10.78.8, 00:29:25, TokenRing0/0
>
> D EX 192.177.3.0/24 [170/425728] via 137.10.78.8, 00:29:25, TokenRing0/0
>
> r7#
>
> --------------------
> r6#r
> Building configuration...
>
> Current configuration : 2328 bytes
> !
> version 12.2
> service timestamps debug uptime
> service timestamps log uptime
> no service password-encryption
> no service single-slot-reload-enable
> !
> hostname r6
> !
> logging buffered 10000 debugging
> enable password radnor
> !
> ip subnet-zero
> no ip domain-lookup
> !
> ip cef
> ip audit notify log
> ip audit po max-events 100
> !
> !
> key chain cta_vlanc
> key 1
> key-string cta_vlanc
> key chain cta_r69
> key 1
> key-string cta_r69
> call rsvp-sync
> !
> !
> !
> !
> !
> !
> !
> !
> interface Loopback0
> ip address 137.10.6.6 255.255.255.0
> ip router isis
> !
> interface Ethernet0/0
> ip address 137.10.74.6 255.255.255.192
> !
> interface Ethernet0/1
> no ip address
> shutdown
> !
> interface Ethernet0/2
> no ip address
> shutdown
> !
> interface Ethernet0/3
> no ip address
> shutdown
> !
> interface Serial1/0
> ip address 137.10.100.6 255.255.255.224
> ip router isis
> encapsulation frame-relay
> serial restart-delay 0
> frame-relay map clns 604 broadcast
> frame-relay map ip 137.10.100.2 604 broadcast
> frame-relay map ip 137.10.100.4 604 broadcast
> frame-relay map ip 137.10.100.6 604
> no frame-relay inverse-arp
> frame-relay lmi-type ansi
> !
> interface Serial1/1
> bandwidth 1544
> ip address 137.10.69.6 255.255.255.240
> serial restart-delay 0
> !
> interface Serial1/2
> no ip address
> shutdown
> serial restart-delay 0
> !
> interface Serial1/3
> no ip address
> shutdown
> serial restart-delay 0
> !
> interface ATM2/0
> description 2 24 12 2
> bandwidth 149760
> no ip address
> shutdown
> atm ilmi-keepalive
> pvc 0/5 qsaal
> !
> pvc 0/16 ilmi
> !
> !
> interface ATM2/0.1 multipoint
> ip address 137.11.69.6 255.255.255.240
> atm esi-address 666666666666.00
> !
> svc 100000000000000
> protocol ip 137.11.69.6
> encapsulation aal5snap
> idle-timeout 10
> !
> !
> svc nsap 10.000000000000000000000000.999999999999.00
> protocol ip 137.11.69.9 broadcast
> encapsulation aal5snap
> idle-timeout 10
> !
> !
> router eigrp 100
> network 137.10.69.0 0.0.0.15
> network 137.10.74.0 0.0.0.63
> no auto-summary
> !
> router isis
> net 49.0426.6666.6666.6666.00
> !
> ip classless
> no ip http server
> !
> !
> !
> alias exec i show ip route
> alias exec r show run
> alias exec c config t
> alias exec u undebug all
> alias exec b show ip bgp
> alias exec bs show ip bgp sum
> alias exec s show ip int brief
> alias exec w write
> !
> line con 0
> exec-timeout 0 0
> logging synchronous
> escape-character 27
> line aux 0
> line vty 0 4
> exec-timeout 0 0
> password bp
> login
> !
> end
>
> r6#
>
>
>
> ----------------------
>
> r7#r
> Building configuration...
>
> Current configuration : 1160 bytes
> !
> version 12.1
> no service single-slot-reload-enable
> service timestamps debug uptime
> service timestamps log uptime
> no service password-encryption
> !
> hostname r7
> !
> logging buffered 10000 debugging
> enable password radnor
> !
> !
> !
> !
> !
> ip subnet-zero
> no ip domain-lookup
> !
> !
> key chain cta_vlanc
> key 1
> key-string cta_vlanc
> key chain cta_r78
> key 1
> key-string cta_r78
> !
> !
> voice-port 1/0/0
> !
> voice-port 1/0/1
> !
> !
> !
> !
> interface Loopback0
> ip address 137.10.7.7 255.255.255.0
> !
> interface BRI0/0
> no ip address
> shutdown
> !
> interface Ethernet0/0
> ip address 137.10.74.7 255.255.255.192
> !
> interface TokenRing0/0
> ip address 137.10.78.7 255.255.255.128
> ring-speed 16
> !
> router eigrp 100
> network 137.10.74.0 0.0.0.63
> network 137.10.78.0 0.0.0.127
> no auto-summary
> no eigrp log-neighbor-changes
> !
> ip classless
> ip http server
> !
> !
> alias exec i show ip route
> alias exec r show run
> alias exec c config t
> alias exec u undebug all
> alias exec b show ip bgp
> alias exec bs show ip bgp sum
> alias exec s show ip int brief
> alias exec w write
> !
> line con 0
> exec-timeout 0 0
> logging synchronous
> escape-character 27
> line aux 0
> line vty 0 4
> exec-timeout 0 0
> password bp
> login
> !
> end
>
> r7#
>
> --------------------
>
>
> r8#r
> Building configuration...
>
> Current configuration : 1292 bytes
> !
> version 12.2
> no service single-slot-reload-enable
> service timestamps debug uptime
> service timestamps log uptime
> no service password-encryption
> !
> hostname r8
> !
> logging buffered 10000 debugging
> logging rate-limit console 10 except errors
> enable password radnor
> !
> ip subnet-zero
> no ip finger
> no ip domain-lookup
> ip host bb2 137.10.98.100
> !
> no ip dhcp-client network-discovery
> !
> key chain cta_r78
> key 1
> key-string cta_r78
> !
> !
> !
> !
> interface Loopback0
> ip address 137.10.8.8 255.255.255.0
> !
> interface Ethernet0
> ip address 137.10.98.8 255.255.255.0
> !
> interface Serial0
> no ip address
> shutdown
> no fair-queue
> !
> interface Serial1
> no ip address
> shutdown
> !
> interface TokenRing0
> ip address 137.10.78.8 255.255.255.128
> ring-speed 16
> !
> router eigrp 100
> network 137.10.78.0 0.0.0.127
> network 137.10.98.0 0.0.0.255
> no auto-summary
> no eigrp log-neighbor-changes
> !
> ip kerberos source-interface any
> ip classless
> ip http server
> !
> !
> alias exec i show ip route
> alias exec r show run
> alias exec c config t
> alias exec u undebug all
> alias exec b show ip bgp
> alias exec bs show ip bgp sum
> alias exec s show ip int brief
> alias exec w write
> !
> line con 0
> exec-timeout 0 0
> logging synchronous
> transport input none
> escape-character 27
> line aux 0
> line vty 0 4
> exec-timeout 0 0
> password bp
> login
> !
> end
>
> r8#
>
>
> ------------------
>
> r9#r
> Building configuration...
>
> Current configuration : 1237 bytes
> !
> version 12.2
> no service single-slot-reload-enable
> service timestamps debug uptime
> service timestamps log uptime
> no service password-encryption
> !
> hostname r9
> !
> logging buffered 10000 debugging
> logging rate-limit console 10 except errors
> enable password radnor
> !
> ip subnet-zero
> no ip finger
> no ip domain-lookup
> !
> no ip dhcp-client network-discovery
> !
> key chain cta_r69
> key 1
> key-string cta_r69
> !
> !
> !
> !
> interface Loopback0
> ip address 137.10.9.9 255.255.255.0
> !
> interface Ethernet0
> ip address 137.10.98.9 255.255.255.0
> !
> interface Serial0
> bandwidth 1544
> ip address 137.10.69.9 255.255.255.240
> no fair-queue
> clockrate 2000000
> !
> interface Serial1
> no ip address
> shutdown
> !
> router eigrp 100
> network 137.10.69.0 0.0.0.15
> network 137.10.98.0 0.0.0.255
> no auto-summary
> no eigrp log-neighbor-changes
> !
> ip kerberos source-interface any
> ip classless
> ip http server
> !
> !
> alias exec i show ip route
> alias exec r show run
> alias exec c config t
> alias exec u undebug all
> alias exec b show ip bgp
> alias exec bs show ip bgp sum
> alias exec s show ip int brief
> alias exec w write
> !
> line con 0
> exec-timeout 0 0
> logging synchronous
> transport input none
> escape-character 27
> line aux 0
> line vty 0 4
> exec-timeout 0 0
> password bp
> login
> !
> end
>
> r9#
>
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This archive was generated by hypermail 2.1.4 : Mon Feb 02 2004 - 09:07:37 GMT-3